[Downloads] Consolidate MOTW annotation APIs into a single API.

content/browser/BUILD.gn

Index: content/browser/BUILD.gn
diff --git a/content/browser/BUILD.gn b/content/browser/BUILD.gn
index 61b0c022a01fcd6ef8d87d5bff16401cc891f0c5..d0581a68d1d6aa7fd523e00921e1dfce533711b9 100644
--- a/content/browser/BUILD.gn
+++ b/content/browser/BUILD.gn
@@ -475,8 +475,6 @@ source_set("browser") {
     "dom_storage/session_storage_namespace_impl.h",
     "download/base_file.cc",
     "download/base_file.h",
-    "download/base_file_linux.cc",
-    "download/base_file_mac.cc",
     "download/base_file_posix.cc",
     "download/base_file_win.cc",
     "download/download_create_info.cc",
@@ -510,12 +508,13 @@ source_set("browser") {
     "download/drag_download_file.h",
     "download/drag_download_util.cc",
     "download/drag_download_util.h",
-    "download/file_metadata_linux.cc",
-    "download/file_metadata_linux.h",
-    "download/file_metadata_mac.h",
-    "download/file_metadata_mac.mm",
     "download/mhtml_generation_manager.cc",
     "download/mhtml_generation_manager.h",
+    "download/quarantine.h",
+    "download/quarantine_constants_linux.h",
+    "download/quarantine_linux.cc",
+    "download/quarantine_mac.mm",
+    "download/quarantine_win.cc",
     "download/rate_estimator.cc",
     "download/rate_estimator.h",
     "download/save_file.cc",
@@ -1129,8 +1128,6 @@ source_set("browser") {
     "resolve_proxy_msg_helper.h",
     "resource_context_impl.cc",
     "resource_context_impl.h",
-    "safe_util_win.cc",
-    "safe_util_win.h",
     "screen_orientation/screen_orientation_delegate_win.cc",
     "screen_orientation/screen_orientation_delegate_win.h",
     "screen_orientation/screen_orientation_dispatcher_host_impl.cc",